Washer



H. L. MILLER Dec. 3, 1929.

WASHER 2 Sheets-Sheet 1 Filed Feb. 8, 1928 Dec. 3, 1929. MILLER 1,737,938

WASHER Filed Feb. 8, 1928 2 Sheets-Sheet 2 Patented Dec. 3, 1929 UNITED STATES HARRY L. MILLER, OF CHESTER, PENNSYLVANIA WASHER Application filed February This invention relates to an apparatus for washing and sterilizing the pans and lids of that class of ice cream molds adapted to make long thin slabs of ice cream, these pans being I popularly termed slabs. This improved washer, in its preferred form, comprises a tank divided by a partition into two compartments, a pump connected with each of said compartments, sprinkling manifolds connected with each of said pumps, supports on which the inverted pans and lids may rest as they are fed through the washer, the pans being supported in the same vertical plane as the lids, so that said pans and lids may be simultaneously cleansed, and steam manifolds by which the cleansed pans and lids may be sterilized, all as will hereinafter more fully appear.

In the accompanying drawings, Fig. 1 is a' washer. Fig. 2 is an end view looking from the right of Fig. 1, and Fig. 3 is a transverse section on line 8--3, Fig. 1.

Referring to the drawings, 12 denotes a tank provided with a partition 13 dividing the tank into two compartments A and B. Below the compartment A is a motor driven pump 14: which draws water from said compartment through a pipe 15 and forces water upward through a pipe 16 into a set of sprinkling manifolds 17, 18 and 19.

Extending longitudinally through the apparatus above the tank 12 are bars 20 which support the inverted pans P and above the bars 20 are bars 21 which support the inverted lids L, these pans and lids being pushed along through the machine by the attendant. The manifolds 17 are provided on their upper side with perforations which jet upward into the inverted pans. The manifold 18 is provided with perforations which jet both downward and upward against the bottoms of the inverted pans and into the inverted lids, and the manifold 19 is provided with perforations which et downward against the bottoms of the inverted lids.

Beneath the compartment B is a motor driven pump 22 which draws water through a pipe 23 and forces the same upward. through a pipe 24 into perforated manifolds 25, 26

Serial No. 252,835.

and 27. The perforated manifolds 25 jet upward, the perforated manifolds 26 jet both upward and downward and the perforated manifolds 27 jet downward so as to wash the pans and lids in the same manner as the set of manifolds first referred to.

Extending into each compartment A and B is a steam inlet pipe 28 by which the water in said compartments may be heated. Water may be supplied tothe compartment B of the tank 12 through any suitable inlet, as 29. The partition 13 is provided with an opening 30 through which water may flow from the compartment B to the compartment A. The compartment A is provided with an overflow pipe 31 the top of which is slightly below the level of the opening 30, said pipe 31 communicating with a drainage pipe 32 having upwardly extending pipes 33 provided with globe valves 34 which may be opened when it is desired to empty the tank 12.

Toward the discharge end of the washer, beyond the manifolds 25, 26 and 27, are arranged two steam pipes 35 connected with any suitable source of steam supply, these steam pipes being both perforated on their upper sides so as to jet upward into the inverted pans and lids, as will be understood from Fig. 1.

In the use of the improved washer the in verted pans and lids are placed by the attendant on the longitudinally supporting bars 20 and 21, at the right hand of the washer as shown in Fig. 1, and these pans and lids push each other along as they are fed in by the attendant. It will be noted that the manifolds over the compartments A and B are considerably separated from each other, so that the pans and lids, after having been washed by the first set of manifolds 17 18 and 19, may drain in the space between the two sets of manifolds. The manifolds 25, 26 and 27 are also considerably separated from the sterilizing steam pipes 35, thus providing for a second drainage of the pans and lids after hav- Q ing been washed by the manifolds over the compartment B.

Angle bars 36 will prevent the pans P from being displaced as they are fed through the washer, and longitudinal bars 37 will prevent endwise displacement of the lids as they are fed through the washer.

From the foregoing it will be understood that the invention provides a convenient washer by which the pans and lids of slab molds may be simultaneously cleansed in a convenient and rapid manner.

The invention is not to be understood as being limited to the details herein shown, as these may be varied widely within the province of mechanical skill without departing from the scope of the invention by which the pans and lids of slab ice cream molds may be simultaneously cleansed and sterilized. Instead of supporting the lids above the pans, as shown and described, it will be obvious that thisarrangement may be reversed, and the pans be supported above the lids, as will be understood.

Having thus described my invention, I claim and desire to secure by Letters Patent:

A washer for cleansing slab-molding pans and lids comprisingtwo trackways, one above the other, on which inverted pans and lids may be supported, sprinkling devices arranged above, below, and between the track- Ways and perforatedso that the upper device jets downwardly, the lower device jets upwardly and the central device jets both upwardly and downwardly, and means for supplying liquid to said sprinkling devices.

In testimony whereof I affix my signature.

HARRY L. MILLER. 

